Joseph t



(N'o Model.)

J. T. BEDFORD. Machine for Coating Paper with Wax, 8vo.

No. 243,353. Patented )une 28,1881.

Witnesses."

N. PETERS. PhdvLhonph-r, Wuhingtnn. D. C.

UNITED lSTATES JOSEPH fr. BEDFORD,

PATENT OFFICE. v

OENEw YORK, N. Y.

MACHINE FOR COATING PAPERVWITH WAX, SLC.

SPECIFICATION forming part of Letters Patent No. 243,353, dated June `28, 1881.

Application filed November 9, 1880.

To all whom it may concern:

Be it known that I, JOSEPH l. BEDFORD, a citizen of the United States, residing at New York, in the county and State ot' New York, have invented a new and useful'lVIachine for Coating Paper with W`ax or other Material, of which the following is a specification.

My invention relates to improvements in paper-coating machines in which a melting-tank for wax, glue, parafline, or other suitable material is used in conjunction-with an adjustable elevator or deliver-er of said material, and aheated roller, a cooling-fan, and a feeding apparatus.

The objects of my invention are to provide the paper with a uniform coat of any desired thickness ot' coating material in a very simple manner, and deliver it in an even condition,without wrinkles or ruftles. I attain these objects by the 'mechanism illustrated in the accompanying drawingsin which- 'delivering or coating device.

' coating device, D a cooling device, and E the feeding device, of -my machine.

The paper-roll B is supported by a central shaft, b b, the ends of which rest upon antifriction rollers f j', suitably attached to the frame A, whereby the discharge of the paper sheet b from the roll B is effected without strain to the paper, no matter how large and heavy the roll may be. From the roll B the paper sheet bv passes over a guide-roller, G, thence under a heated roller, H, of the coating device C, and thence over another guideroller, G. The two guide-rollers G G are in part elevated above the bottom surface of the :roller H, as shown, and thus cause the paper sheet b to pass partly around said roller, and become thoroughly and uniformly heated by the same, and consequently well prepared to receive its coating. To prevent the (No model.)

paper sheet b from lifting the roller H out of its desired level the journals h of said roller are hung in slotted bearin gs 7L of suitable stands, H', which are provided with verticalset-screws h2, and movable top bearings, h3, whereby theV roller can be adjusted to any suitable eleva' tion. While the paper sheet b is being heated 'it is also pressedA down by the roller H upon thus I control the amount of vcoating materiall in its Iascent through the felt, and its delivery upon the paper sheet b. The clamp J J rests upon the lid k of a tank, K, of the coating device, and holds the felt in contact with the pa per above, while at the same time it keeps the felt partially immersed in the coating material in the tank. The roller H and tank K are heated by suitable ordinary heating devices. From the roller G the paper sheet b passes (as indicated by arrows) around three guiderollers, L L L2, which are arranged in relative triangular position, as shown, and over or around which the paper sheet passes, so as to form anopen angle .or free space at the bottom. Beneath the apex of this triangular arrangement ot'- the rollers L L L2 a fan, M, is suitably hung to the frame A, which fan is revolved by the main shaft N ofthe machine by means of wheels m n, and thus rapidly cools and dries the paper sheet. The paper so treated passes over'another guide-roller, L3, to the feed-rollers O Ol of the feeding device E, the lower one of which, O, is hung in rigid bearings ot' suitable bearing stands, P, and the upper one, O', rests upon the lower roller, and is kept in place by means of vertical guideslots p. y

By means of set-screws p', bearing upon the uppei` bearing-blocks, p2, in the slot, the roller O' can be forced down upon the roller O to any desired extent, so that the paper sheet b is IOO not only safely and uniformly drawn through the machine, but may also be delivered with a calendered surface.

rlhe several guide-rollers described, and the roller O, are provided with pulleys g l l Z2 Z3 0, respectively, which are driven by belts from pulleys n n2 upon the main shaft N, and m on the fan-shaft, as shown, at a uniform speed.

The guide rollers and shafts are all provided with suitable bearings of known construction, and these are all fastened to the frame A of the machine.

The coating material principally used will be parafne; but wax, oil, glue, or any other material which can be melted or kept in a dissolved state may be used in my machine for coating paper.

Prior to my invention porous materials for conductingmoist substances to paper and other like materials were used, and in some instances such materials had been confined adjustably by clamps; but such porous materials were not employed for the purpose and in combination with other parts as set forth in my specification. l

I claim- 1. The combination, with rollers for pressing and smoothing the paper or 'other material being coated with wax or like substance, of a trough containing coating substance, and a sheet or block of felt, or of similar absorbent and conducting material, suspended in the trough and beneath the roller H, and bearing with its upper edge against the surfaceof the paper being coated, substantially as and for the purpose described.

or less porous, substantially as and for the purpose set forth.

3. The combination ofthe heating and pressure roller H, rollers G G', and coat-elevating felt I, substantially as and for the purpose set forth.

4. rlhe combination of a coating device consisting of a trough, pressure-roller H, rollers G (Er/,and a sheet of felt, a feeding device consisting of rollers 0 O and pressure-screws p. and a cooling device .consisting otl a fan and rollers, L L L2, substantiallyas and for the purpose described.

5. The combination of the deliecting guiderollers L Ll L2 and fan M, intermediate of the rollers L L2, substan tially as and for the purpose set forth.

Signed in presence of two subscribing witnesses.

' JOSEPH T. BEDFORD. YVitnesses:

B. H. MARTIN, JOHN A. BAssE'rr. 

